Transfer device for finely-ground material



1 July' 9, 1929. H, PEIKERT 1,719,996

TRANSFER DEVICE FOR INELY GROUN MATERIAL Filed June, 22. 1927 i v Patented July 9, 1929.

HEINRICH PEIKERT, F KALKBERGE, GERMANY.

TRANSFER DEVICE Fon FINELY-GR0UND MATERIAL.

Application led June 22, 1927, Serial No. 20Q,628\, and in Germany December 2, 1925.

This invention relates to a transfer device for finely ground material and consists'essentially therein that the sepa-rating walls of the compartment wheel are fastened in tangential direction on the periphery of the axle and constructed in the form of resilient leafsprings. In the construction of this kind heretofore proposed or devised the several separating walls are directed radially with respect to the axis and an essential disadvantage connected with this construction consists therein that the springs will quickly wear off during operation. In case of dustconveyers operated by pressure-air there will arise a further inconvenience which consists t-herein that the pressure-air will quickly pass through the compartment wheel from be low and enter the bin or the material ,to be conveyed will be quickly passed from the bin through the leaks which are present in the separating walls. When employing such radial separating walls it is known to provide the resilient ends which form contact with the interior walls of the casing with a special packing material, such as for instance leather or the like, in order to increase the life-time of the apparatus as much as possible and to provide an air-tight closure between the radial partition walls and the casing. Up to the present time such constructions, however, have not met with any practical success, this being mainly due to the reason that the pack ing material, such as leather or the like which is used for providing a tight contact between the ends of the radial partition walls and the casing will soon be worn ofi' especially in case material of more granular' consistency such as carbon or the likemis used.

In order to avoid these disadvantages and inconveniences the partition walls which form the several cells or compartments of the compartment wheel of the transfer-device according to my invention are fastened in tangential direction to the axle of said wheel. Evidently, by this tangential arrangement the advantage will be attained that the several partition walls will be in a far more resilient contact with the wall of the casing than possible with radially directed walls. This is mainly due to the fact that when providing said walls tangentially to said axle the walls may be made considerably longer and the angle at which the contact with the wall of the casing may be made smaller so that even in case of large wear a considerable longer life-time of the device will be safeguarded. In addition to this the radial ar- `rangement of said walls is connected with the advantage that the resiliency of the separating walls and the pressure exerted by the latter upon the wall of the casing will be enhanced, this contributing further to provide a proper closure between the wall of the casing and the separating walls.

In the drawing I have represented an eX- arnple of a construction according to my invention,

Fig. l being a cross-section perpendicularly through the axis of my new transfer device for finely ground material such as flour,

Fig. 2 being a diagrammatic representation of a modified device according to my invention having a plurality of separating walls which are fastened on the axle of the device in tangential direction thereto, and

Fig. 3 showing a modified construction of fastening the separating Walls to the axle of the device.

Referring now more particularly to the drawing in Fig. 1 there is shown a bin or the like a from which the finely ground material such as flour, shall be discharged. The transfer device proper consists of an axle b which may be driven in any desired manner, said axle being either of quadrangular or polygonal cross-section in conformity to the number ofseparating walls c which shall be provided in said device. According to Fig. .l the axle b is shown as being of quadrangular cross-section and in accordance therewith four separating Walls 0 are provided on said axle in the manner shown in the drawing, viz: in tangential direction to this axle. As indicated in Fig. l, the separating Walls c may consist of a plurality of leaf-springs which are positioned one above the other.

According to the construction which is diagrammatically indicated in Fig. 2, there is employed a plurality of separating walls and, as may be seen particularly from this figure, these separating walls may be more easily bent by reason of their greater length and in consequence thereof will be able to more snugly lit the interior surface of the casing.

According to F ig. 3 an especial form of tangential arrangement of the separating Walls is employed, which are mounted on the axle of the device; this construction has met with great success in practice. This mode of fastening the separating walls on the axle consists therein, that an angle-iron f is mounted upon the axle of the device by means of a groove g of dove-tail conformation, which is cut intov the axle b. For the purpose of properly mounting the angle-iron f upon the axle Zn the one shank of said angleiron is of enlarged cross-section towards the outside, in order to t the groove g provided on said axle b. The other shank of the angle-iron f will thus be directed tangentially to the axle and the several leaf-springs L are mounted upon the outer surface of said i' vsecond shank of the. angle iron The latter,

therefore, are carried by a common support in the form of the angle-iron f so that said separating walls for leaf-springs /L may 'easily be exchanged if necessary. The several separating walls may preferably consist of a plurality of leaf-springs /L which are posiing sufficient strength thereof towards theg of separating walls fixed tangentially on said axle, said walls being formed from leafsprings resiliently contacting at their ends with said casing.

In testimony whereof I aliix niv signature.

HEINRICH PEIKERT. 

